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Changes in the physico-chemical properties of topsoil in a landslide-affected area (western part of the Transylvanian Basin, Romania)

Bălc Ramona, Roba Carmen, Rosian Gheorghe, Costin Dan, Horvath Csaba, Zglobiu Octavia Raluca, Chirtos Diana

Geological Quarterly

2020

Vol. 64, No. 4

931--941

Landslides determine increases and decreases in specific soil compounds which is affecting soil fertility. The recovery of soil fertility is a long process and may be used as an indicator of the landslide age and can contribute to the management plan of the affected area. In order to add to data about soil properties affected by landslides, the current study focuses on a young and shallow landslide from the western part of the Transylvanian Depression. Soil samples were analysed from a physico-chemical point of view (pH, organic matter - OM, total organic carbon - TOC, major cations, and iron content) in two places, at between 0 and 60 cm depth (inside and outside the landslide). The results obtained showed lower values of pH inside the landslide, low values of TOC and rock fragments in both places studied (inside and outside the landslide) and no differences in soil texture between disturbed and undisturbed soil. The ammonium, magnesium and calcium content was higher outside the landslide, the sodium level was slightly higher outside the landslide, while the potassium concentration was higher inside the landslide. This study offers new data regarding recovery of soil fertility and highlights the importance of gaining knowledge on soil properties of relevance to future measures to increase the fertility of agricultural soils.

Computer application for predicting pollution of the Tisza River in emergency situations

Gertsiuk Mykola, Horvath Csaba, Gertsiuk Modest

Aparatura Badawcza i Dydaktyczna

2019

T. 24, nr 2

110--114

The software and mathematical model for forecasting the pollution of rivers in emergency situations is described. This software contains a database of maximum allowable concentrations to assess the health hazards of people. The use of this software is grounded in the conditions of the Tisza River.

Opisano program komputerowy i model matematyczny do przewidywania zanieczyszczenia rzek. Program zawiera zbiór dopuszczalnych stężeń w celu oszacowania niebezpieczeństwa dla zdrowia ludzi. Zastosowanie tego programu jest przystosowane do warunków rzeki Cisa.